Web winding apparatus
    39.
    发明专利

    公开(公告)号:GB913797A

    公开(公告)日:1962-12-28

    申请号:GB1144161

    申请日:1961-03-29

    Abstract: 913,797. Variable-speed gear and control. PAPER CONVERTING MACHINE CO. Inc. March 29, 1961, No. 11441/61. Class 80 (2). [Also in Group XVI] In a web-winding apparatus (see Group XVI) winding mandrels on an indexible frame are driven by a variable-speed gear, such that when a mandrel occupies a position adjacent to a winding station it is driven at an increasing speed so as to accelerate to the linear speed of the material being wound and when in winding position at a decreasing speed to compensate for an increase in diameter. The mandrels 15a . . . 15f, Fig. 1 (not shown), each have fast and loose pulleys 17, 18 engaged by belts 21, 23, the positions of the fast and loose pulleys being transposed on adjacent mandrels. The belts 21, 23 are driven by pulleys 22, Fig. 4, through opposed cones 30, 35 engaged by belts 38. The positions of the belts 38 are varied to vary the speed ratio by axial adjustment of pulleys 39 along shafts 43 by actuation of cables 56, 57. The cables are adjustably secured to levers 54, 55 by blocks 55c, 54c, Fig. 2 (not shown). The levers 54, 55 are rocked by cams 46, 47 to produce the required cyclical variation in speed of the mandrels. Specification 793,490 is referred to.

    Web winding machine
    40.
    发明专利

    公开(公告)号:GB793490A

    公开(公告)日:1958-04-16

    申请号:GB1274956

    申请日:1956-04-25

    Abstract: 793,490. Cutting tubes. PAPER CONVERTING MACHINE CO., Inc. April 25, 1956, No. 12749/56. Class 31 (1). [Also in Group XVI] In a machine for winding the sections of a longitudinally-slit web on to corresponding sections of a tubular core (see Group XVI), the original core is placed on a mandrel 43 of a turret 114, 115 at a station a and is carried by the turret to station b where it is cut into lengths corresponding to the widths of the web sections. The cutters 58 are carried by brackets fixed to a shaft 54 and are spaced axially and actuated alternately above and below a core when the latter is at station b. If no core is present, the shaft 54 and cutter assemblies tilt in a clockwise direction, Fig. 3, to allow a mandrel with a core thereon to pass to station b. A roller 88, Fig. 5, on the end of the mandrel engages an arm 89 on the shaft 54 to move the cutter assembly to operative position. A driven shaft 86 has knurled parts which engage and rotate the cores at station b while the cores are in contact with the cutters.

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